Re: [CAD_CAM_EDM_DRO] Re: CNC Converting Questions

knives01us wrote:

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>
>I have a CNC'd minimill with direct drive to the stock leadscrews
>w/ball thrust bearings on all axis, and 424oz/in size 34 steppers.
>I'm not getting close to the rapids speed you mentioned, so I
>wondered what voltage the Geckos are running at and what you used for
>leadscrews? I've got a 3.5 amp 24 volt microstepping driver, and the
>steppers are peaking out at 35 ipm.
>
>

I'm using 48 V. with the Gecko 201A, which is a x10 microstepping drive.
I am using my Universal Stepper Controller to generate the step
pulses. It generates a very smooth train of pulses, which helps the
motor/driver combination get the best performance. The leadscrews
are the original square-thread 16 TPI. With x10 microstepping, that
gives 2000 steps/rev, or 32000 steps/inch. To get 90 IPM (1.5 IPS)
it takes 48,000 steps/second. That is really pushing it for software
generated steps, but the USC board has no trouble doing that.

Currently, only EMC supports this board, although I will be working
on getting Mach 2 to support it soon.

Jon